Why Do Nasolabial Folds Appear?
Nasolabial folds (commonly known as “marionette lines” or “laugh lines”) are relatively prominent and can significantly affect one’s facial appearance. There are multiple contributing factors to their development. Generally, the older a person becomes, the more pronounced these folds appear—primarily due to age-related skin tissue degeneration. As skin loses elasticity and collagen content gradually declines, nasolabial folds become increasingly visible. Therefore, timely intervention using appropriate methods is essential to improve their appearance. Below is an overview of relevant information.
Why Do Nasolabial Folds Form?
Repetitive movement of facial muscles—including the zygomaticus major and zygomaticus minor
The nasolabial groove lies lateral to the orbicularis oris muscle and extends outward from the fusion zone of the levator labii superioris and zygomaticus major muscles. Throughout life, repeated facial expressions cause these muscles to contract repeatedly, progressively deepening the nasolabial groove—from initially dynamic (visible only during expression) to eventually static (permanently visible at rest).
Soft-tissue atrophy
With advancing age, soft tissues—including skeletal muscle and subcutaneous fat—gradually atrophy. This leads to relative excess and sagging of overlying skin, thereby accentuating the depth of the nasolabial groove.
Skin aging
As aging progresses, dermal collagen and elastin fibers progressively lose resilience. Consequently, the lower face—from the nasolabial groove to the mandibular border—becomes increasingly lax, with gravitational effects becoming more apparent—further deepening the nasolabial groove.
Collagen-rich moisturizers can deliver collagen to the skin surface via topical application. Thus, after cleansing, consider using anti-aging, wrinkle-reducing skincare products to nourish and revitalize the skin.
Excessive ultraviolet (UV) radiation exposure poses numerous risks: mild effects include skin darkening and roughness; severe consequences may even include skin cancer. UV radiation is also a leading contributor to premature skin aging, as direct sun exposure damages deep dermal elastic fibers and collagen, accelerating wrinkle formation. Therefore, daily sun protection is essential for preventing nasolabial folds.
Incorporate collagen-rich foods into your diet—such as pig trotters and chicken skin—to help delay skin aging. Additionally, consume vegetables like radishes, tomatoes, Chinese cabbage, and celery, as well as fruits including apples, citrus, watermelon, and jujubes. The vitamins and minerals in these foods enhance skin elasticity, suppleness, and radiance—helping prevent the formation of nasolabial folds.
The presence of nasolabial folds often imparts an aged appearance. At this stage, enhanced daily skincare becomes crucial—such as regular facial massage, consistent use of anti-wrinkle products, and diligent overall skin maintenance.
We hope the above information proves helpful. Wishing you a joyful and healthy life!
